rear defroster not working (but it gets voltage)
08-01-2017, 06:00 PM
#1
Junior Member
Thread Starter
Join Date: Jun 2012
Location: Torrance, CA
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
2005 e320 CDI, 2010 ml350 bluetec
rear defroster not working (but it gets voltage)
it was working fine, now its not. The relay is fine, the fuse is fine. if i disconnect 12v input from the antenna amp module in the c pillar, reads 12v on the DMM, if i connect it, then it drops to ~3v or less than climbs a little. on the output side its 0v (amp - window). I replaced the module, and still the same. checked the wiring on the SAM/relay box and everything looks good.
